21690612

素因数分解:

$2^2\times 3^3\times {\mathrm{107}}^1\times {\mathrm{1877}}^1$

素因数の和:1997

約数の個数: 48

約数和(自身を含む): 56790720

約数和(自身を除く): 35100108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 107, 108, 214, 321, 428, 642, 963, 1284, 1877, 1926, 2889, 3754, 3852, 5631, 5778, 7508, 11262, 11556, 16893, 22524, 33786, 50679, 67572, 101358, 200839, 202716, 401678, 602517, 803356, 1205034, 1807551, 2410068, 3615102, 5422653, 7230204, 10845306, 21690612]

約数ペア:

[(1, 21690612), (2, 10845306), (3, 7230204), (4, 5422653), (6, 3615102), (9, 2410068), (12, 1807551), (18, 1205034), (27, 803356), (36, 602517), (54, 401678), (107, 202716), (108, 200839), (214, 101358), (321, 67572), (428, 50679), (642, 33786), (963, 22524), (1284, 16893), (1877, 11556), (1926, 11262), (2889, 7508), (3754, 5778), (3852, 5631)]